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at the specified location. If the popup window cannot fit on screen, it'll be clipped. See for more information on how gravity and the WindowManager.LayoutParams x and y parameters is related. Specifying a gravity of are NO_GRAVITY similar to specifying Gravity.LEFT | Gravity.TOP .Displays a content view by default in a window. If the bubble window does not fit the screen, it will only show the part. Layoutparams is related to how to center and coordinate parameters. Making a center-less one is

1. Activity2. Broadcastreceiver3.services4.contentProviderA. The broadcast recipient ,---------------trigger the Onreceiver method when the specified broadcast is received. This class needs to inherit Broadcastreceiverpublic void OnReceive (context context, Intent Intent) {Broadcast triggers need to be included in the configuration listCan also be configured by codeRegistration of broadcasting, cancellation of registration Unregisterreceiver (receiver);New mybroadrecastreceiver (); // Create Int

Source: http://www.imooc.com/code/1353In life, we often need to make judgments before deciding whether to do something. For example, if your test score is greater than 90, reward an IPHONE 5S. You can use the if condition statement to implement situations where you need to determine the condition before the condition is met.Syntax: Execution process:Such as:Note: If the IF condition is set when the execution statement is only one, it is possible to omit the curly brace drop! But if there are mul

called difficult.The first one is the virtual sense. A very important point to realize the virtual sense is the low latency, i.e. the display screen will be refreshed quickly with the change of people's sight. The general requirements of the field of view return delay of less than 20ms, a higher demand to achieve 15-16ms. Human beings are very sensitive to changes in the head rotation and the relative field of vision, according to research statistics, more than 20ms will have obvious picture ou

-statepageradapter instance requires Fragmentmanager. Create the Newintent method (Crimepageractivity.java) as follows private static final String EXTRA_CRIME_ID = "com.bignerdranch.android.criminalintent.crime_id"; public static Intent newIntent(Context packageContext, UUID crimeId) { Intent intent = new Intent(packageContext, CrimePagerActivity.class); intent.putExtra(EXTRA_CRIME_ID, crimeId); return intent; } UUID crimeId = (UUID) getIntent() .getSerializableExtra(EXTRA_CRIME_I

(Intent.action_media_scanner_scan_file, Uri.parse ("file://"+file ));4 }5 //Traverse Folder6 Private voidFolderscan (String path) {7File File =NewFile (path);8 if(File.exists () file.isdirectory ()) {9file[] Array =file.listfiles ();Ten for(intI=0; i){ OneFile f =Array[i]; A if(F.isfile ()) { -String name =f.getname (); - if(Name.endswith (". PNG

. The get method must be in the get 3. You must specify the start and end values for the ObjectAnimator object of the same type as the animation attribute acquisition (if needed) and setting method. For example, if you construct an ObjectAnimator object like the following, you must have the targetObejct. setPropName (float) and targetObject. getPropName (float) methods: ObjectAnimator. ofFloat (targetObject, "propName", 1f) 4. based on the animation

the serial number S2 from the string to an integer and stores it in K2. Here, K2 is the [serial number] of K2. Finally, we perform an exclusive or operation to obtain the ciphertext, which is covered in K2. Here, K2 becomes K2 [ciphertext]. In an exclusive or operation, if C = a xor B (corresponding to the last step in the F2 function, that is, K2 [ciphertext] = k2 [serial number] XOR 0x1234) Then a = c xor B (corresponding to K2 [serial number] = k2 [ciphertext] XOR 0x1234) That is to say, the

Android custom View (4) ------ one-click animation cleanup1. Preface: I also learned some basic custom view methods by referring to some custom view examples of others. Today, I have made a one-click animation based on some of my own understandings. In those years, I used several images and implemented them using Frame anination. However, this method is not flexible and occupies resources. below, I will use

Source: http://www.imooc.com/code/1432The function of continue is to skip the remaining statements in the loop body to perform the next loop.For example, to print all the even numbers between 1--10, use the continue statement to implement the code:Operation Result:TaskImplementation function: Ask for all even numbers between 1 and 10.Implementation of the idea: Define a variable sum to save the cumulative value, define a variable I save 1 to 10 integer, iterate and judge, if I cannot be divisibl

Android source code parsing (4) --) IntentService What is IntentService? In short, IntentService is a Service that contains its own message loops. First, it is a service. Therefore, services have its own characteristics and some of its own attributes, it encapsulates a message queue and a HandlerThread. In its specific abstract method, the onHandleIntent method runs in its message queue thread, let's take a

First look at the location of the Android 4.x system's certificate store:AOSP the location of the CA certificate file in the Android system is:/system/etc/security/cacerts/a series of digitally named. 0 filesMethod One:Android 4.0 already supports the user to install the root certificate, only need to put the root cert

="The index column that shrinks the two or three column. Because the subscript starts at column No. 0. When a Lietaikuan (too much content) is not extruded, the columns must be separated by commas, and all columns can be shrunk by means of *.A column can represent both contraction and stretching."Android:stretchcolumns="Stretches the index column of the two or three column. Because the subscript starts at column No.

, eliminating the process of interacting with the binder driver.The call to get the proxy is Defaultservicemanager (), which is implemented in IServiceManager.cpp.The process is:1, get the Processstate object of ServiceManager process, can realize by Processstate.self ()2. During the construction of the processstate, the Dev/binder device is opened and mapped to the client process, which can live with the kernel buffers used to pass the communication

simple demo adds the company attribute to the contact person to save the JS code:[JavaScript]View Plaincopy Save data function Save () { var contact = new Object; Contact.user_name = document.getElementById ("user_name"). Value; Contact.mobilephone = document.getElementById ("Mobilephone"). Value; Contact.company = document.getElementById ("Company"). Value; var str = json.stringify (contact); Localstorage.setitem (CONTACT.MOBILEPHONE,STR); Loadall (); } Extracts al

In this example, we will focus on using the SQLite database access method provided by the Android platform, including read/write access.1. Follow the following configuration and the method described in step-by-step instance 1 to create the base of the entire project:Project name: examplefourPlatform: android2.0;Application name: examplefourPackage name: COM. ExampleActivity: mainactivityResource file: Main. xmlThe attributes of a textview are as follo

There is an interview question: Open a child thread and the main thread run at the same time, the child thread output 10 times after the main thread output 100 times, so repeated 50 times. First look at the following code: Package com.maso.test; /** * * @author Administrator * Two threads, which is a main thread, the first threads run the output 10 times first, the main line then run output 100 times, so repeated 50 times/public class THREADTEST3 Imp Lements runnable{private static test

Source: http://www.imooc.com/video/1627IDE Breakpoint Debugging FeaturesFor example, the previous program, wrote the wrong, become the following1 PackageCom.imooc;2 ImportJava.util.Scanner;//written behind the package3 4 Public classHelloWorld {5 Public Static voidMain (string[] args) {6Scanner input=NewScanner (system.in);//Create a Scanner object7System.out.print ("Please enter exam results information:");8 9 intScore = Input.

with default settings, which your Applica tion might need to read in order to determine some behaviors (such as whether to download data and on a cellular network ).This method takes three arguments: Your application Context . The resource ID for the preference XML file for which you want to set the default values. A Boolean indicating whether the default values should is set more than once.When false , the system sets the default va

Chapter 4-android MediaCodec: Determine whether hard decoding code is supported.-androidmediacodec Public boolean issuppmedimediacodecharddecoder () {boolean isHardcode = false; // read the system configuration File/system/etc/media_codecc.xml file File = new File ("/system/etc/media_codecs.xml "); inputStream inFile = null; try {in = new FileInputStream (file);} catch (Exception e) {// TODO: handle excepti